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Kernel Log: Coming in 3.0 (Part 4) - Drivers

The i915-DRM/KMS driver in Linux 3.0 – for Intel graphics
chips in processors and chipsets for notebooks and desktop PCs
– reportedly already controls the graphics core in Ivy Bridge
processors, which Intel will probably not launch until the
beginning of next year (see 1, 2, 3, 4, 5, 6, 7). The developers
once again tried to enable the RC6 power saving technique by
default; because of known problems with the less efficient Frame
Buffer Compression (FBC), the latter has been disabled under
standard settings.

But then more problems turned up and after the seventh
pre-release the developers once again disabled RC6 by default; they
indicated in the commit comment that they plan try again soon."